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Switchport ingress-filtering, Switchport ingress-filtering -233 – SMC Networks SMC TigerStack III SMC6824MPE User Manual

Page 495

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VLAN C

OMMANDS

4-233

Example

The following example shows how to restrict the traffic passed on port 1 to
tagged frames.

Related Commands

switchport mode (4-231)

switchport ingress-filtering

Use this command to enable ingress filtering for an interface. Use the no
form to restore the default.

Syntax

[no] switchport ingress-filtering

Default Setting

Disabled

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

• Ingress filtering only affects tagged frames.
• If ingress filtering is disabled and a port receives frames tagged for

VLANs for which it is not a member, these frames will be flooded to all
other ports (except for those VLANs explicitly forbidden on this port).

• If ingress filtering is enabled and a port receives frames tagged for

VLANs for which it is not a member, these frames will be discarded.

• Ingress filtering does not affect VLAN independent BPDU frames, such

as GVRP or STA. However, they do affect VLAN dependent BPDU
frames, such as GMRP.

Console(config)#interface ethernet 1/1
Console(config-if)#switchport acceptable-frame-types tagged
Console(config-if)#